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Finding the Fourth Proportional to 115,924.80, 173,887.20 and 108,091.20

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Solution

The fourth proportional to 115,924.80, 173,887.20 and 108,091.20 is: 162,136.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,924.80 : 173,887.20 = 108,091.20 : x
  2. Step 2: Convert to fraction form
    115,924.80/173,887.20 = 108,091.20/x
  3. Step 3: Cross multiply
    115,924.80x = 173,887.20 × 108,091.20
  4. Step 4: Simplify right side
    115,924.80x = 18,795,676,112.64
  5. Step 5: Solve for x
    x = 18,795,676,112.64/115,924.80
  6. Step 6: Final answer
    x = 162,136.80

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